Since a week or two Lighthouse PWA audit “Page load is not fast enough on 3G” is failing with a message "Something went wrong with recording the trace over your page load. Please run Lighthouse again. (NO_TRACING_STARTED)
" - see https://www.webpagetest.org/lighthouse.php?test=180209_58_d1b9f6f42787a28bb958612ab3c0f168&run=1#pwa.
This happened on our private instance as well - since Chrome was upgraded on the agents to v64. It doesn’t reproduce when running from Chrome (audits tab or the extension).